Improvement in wagon-brakes



W. '0 WILLIAMS.

WAGON-BRAKE.

No.1i87,6.9 1. Patented Febpzo, 18517.

NFETERS, FHOTO-LXTHOGEAPHER. WASHINGTON D C U e s UNITED STATES PATE 'r"urea.

WILLIAM o. WILLIAMS, OF PIERREPONT MANOR, NEW YORK.

IMPROVEMENT IN WAGON-BRAKES.

Specification formin g part of Letters Patent No. 187,69 1,dated-February 20, 1877 application filed January 21, 1876.

To all whom it may concern:

Be it known that I, WILLIAM OSCAR WIL- LIAMS, of Pierrepont Manor, inthe county of Jefferson and State of New York, have invented certainImprovements in Wagon- Brakes, of which the following is a full, clear,and exact description, reference-being had to the accompanying drawing,and the letters of reference marked thereon, making part of thisspecification, in which Figure 1 is a longitudinal sectional view. Fig.2 is a bottom-plan view.

My invention relates to that series of wagonbrakes which are automaticin operation; and consists in eccentrically pivoting to .the brakebarshoes so constructed that the top of the same shall be vrounded, whilethe face next the wheel shall conform to the contour of the wheel, andin attaching the brake-bar, by means of a rod passing under the tongue,to a lever, which has its fulcrum in and extends above the tongue.

The construction and operation of my invention are as follows:

A is the wagon-tongue, and B B are the wheels, all constructed in theusual manner. 0 is the brake-bar, which rests and moves in bearings c 0,attached to the under surface of the elongation G O ofthe hounds. D is arod, which has one end fastened to the brake-bar O, and extends underthe axle and tongue, the other end being attached to a lever, D,fulcrunied in the forward end of the tongue A. The handle 01 of thislever extends above the tongue a sufficient distance to enable theneckfOIlIl to the contour of. the wheel, as clearly shownin Fig. 1, sothat when the brake-bar is pulled forward through the rod D and lever D,the point e of the shoes first comes in contact with the wheel, and thewheel, still revolving, causes the shoes partly to revolve, until theface 0 of the shoes bites against the wheels, which securely locks them.

, Should the wheels be turned in the opposite direction, as in backing,the bite of the point e is so slight that it will interfere but pverylittle with the free action of the wheel.

0 is aspring, attached at its center to the brake-bar G, and having itsends resting against the side of the bearings c c. The tension of thisspring is constantly exerted to keep the brake-bar away from the wheels.F is the neck yoke, which is secured to the tongue by means of a ringand links.

When it isdesired to brake the wagon the horses pull back the neck yoke,which, in turn, presses against the lever D, thereby causing thebrake-bar 0, through the rod D,

to be drawn toward the wheels, and the brakeshoes E E to lock them.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

A wagon-brake consisting of the lever D, rod D, spring 0, brake-bar 0,having shoes E E pivoted thereto, said shoes being camshaped, and soarranged that when the brake is thrown on, the shoes shall first strikethe wheels at their points 0 e, and then, through the revolution ofwheel, be fully brought in contact therewith, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

W. OSCAR WILLIAMS.

Witnesses GEO. A. HUGGINS, A. L. BAKER.

